Definition of cleanly in English:

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Pronunciation: /ˈklēnlē/
1In a way that produces no dirt, noxious gases, or other pollutants: the engine burns very cleanly
More example sentences
  • The additive makes petrol burn more cleanly, so air pollution is reduced.
  • It burns very, very cleanly in the engine, so it improves emissions in the overall environment a lot.
  • Burning cleanly with no pollutants, this may be an answer the energy sucking economy is looking for.
2Without difficulty or impediment; smoothly and efficiently: he vaulted cleanly through the open window
Old English clǣnlīce (see clean, -ly2)
More example sentences
  • Using sharp pruners, cut the stems cleanly where they meet larger branches.
  • The chemical industry is under pressure to reduce its impact on the environment and to run its operations as cleanly and efficiently as possible.
  • Only the distance of history lets us believe that such events are ever carried out cleanly and efficiently.


Pronunciation: /ˈklenlē/
(cleanlier, cleanliest) archaic
(Of a person or animal) habitually clean and careful to avoid dirt.
Old English clǣnlīc (see clean, -ly1)

Words that rhyme with cleanly

eco-friendly, user-friendly queenly

For editors and proofreaders

Syllabification: clean·ly

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